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The inability to alter intrinsic piezoelectric behavior in organic polymers hampers their application in flexible, wearable and biocompatible devices, according to researchers at Penn State and North Carolina State University, but now a molecular approach can improve those piezoelectric properties.

New insight into how a certain class of photovoltaic materials allows efficient conversion of sunlight into electricity could position these materials to replace traditional silicon solar cells. A study by researchers at Penn State reveals the unique properties of these inexpensive and quick-to-produce halide perovskites, information that will guide the development of next generation solar cells. The study appears September 27 in the journal Chem.

There is a scrapyard in Accra, Ghana, known as "Agbogbloshie," where e-waste goes to die — at least, that is the way it has been misrepresented and misunderstood by those on the outside. Penn State faculty members DK Osseo-Asare and Yasmine Abbas have spent years working with urban miners — scrap dealers and grassroots makers in and around Agbogbloshie — to tell a more complete story and co-develop strategies for interweaving design innovation into the circular economy of West Africa.

Every second counts for those with life-threatening injuries, especially when help is far away. A new grant will help Penn State researchers develop an innovative foam that helps seal wounds quickly — whether on the battlefield, in rural areas or in other isolated locations far from hospitals.